Five men suspected of being involved in the attack on the World Trade Centre set up cameras to record the atrocity, it emerged today.

Five suspects allegedly involved in the atrocities are said to have set up cameras on the banks of the Hudson to record the crashes

The men set up cameras on the west bank of the Hudson River, trained them on the twin towers to capture the attacks and apparently congratulated each other when the crashes occurred, the New York Times reported.

The five were under investigation by police in Union City, New Jersey, but it was unclear if any of them were in custody today.

The allegation came as police in New Jersey told the New York Times the hijackers who left from Newark airport on the flight which crashed in Pennsylvania had received aid from associates in the area.

The paper reported law officials said the team was "aided by confederates in Newark who were responsible for logistical support, including money, rental cars, credit cards and lodging".

And it emerged that FBI investigators believe each team of hijackers acted independently from each other but under orders from a supreme commander.

The conclusion was reached after evidence from the flights' passenger lists, payphone records, evidence taken from the rental car seized in Boston and the frantic phone calls made from the hijacked planes.

It was the commander who selected the flights to be hijacked and orchestrated the attacks to occur at about the same time.

But the man has not been publicly identified by investigators, the New York Times reported. His whereabouts are currently unknown.